Two former Parramatta Eels players are accused of harbouring semi-automatic weapons and possessing more than half-a-million dollars in cash after dramatic arrests in Sydney's Centennial Park yesterday.

WA Libs backflip over unpopular power plan

West Australian Premier Colin Barnett has denied his backflip over an unpopular state budget cost savings measure was due to pressure from a "grumpy" federal Liberal MP.

The Liberal leader says he was not pushed into abandoning the plan to slash the solar feed-in tariff rate for households that funnel surplus power back into the grid from 40c per kilowatt hour to 20c/kWh.

The move was expected to save $51 million but was abandoned four days after being announced in last Thursday's budget following a huge public backlash and from within the state Liberal party.

It flew in the face of a 2011 letter from power utility Synergy that said the 40c/kWh rate was locked in for 10 years.

"I was not prevailed on," Mr Barnett told reporters.

"I received one fairly grumpy message from one federal member - that was it."

Asked who sent the message, the Premier responded: "You can do your own research".